LG 47LD750, 47LD780, 47LD790, 47LD751 Schematic

5 (1)

LCD TV

SERVICE MANUAL

CAUTION

BEFORE SERVICING THE CHASSIS,

READ THE SAFETY PRECAUTIONS IN THIS MANUAL.

CHASSIS : LD03B

MODEL : 47LD750/750N 47LD750/750N-ZA

MODEL : 47LD780/790 47LD780/790-ZA

MODEL : 47LD751

47LD751-ZB

North/Latin America http://aic.lgservice.com

Europe/Africa http://eic.lgservice.com

Asia/Oceania http://biz.lgservice.com

Internal Use Only

Printed in KoreaP/NO : MFL62863020 (1003-REV00)

- 2 -

Only for training and service purposes

CONTENTS

CONTENTS .............................................................................................. 2

PRODUCT SAFETY ................................................................................. 3

SPECIFICATION ....................................................................................... 4

ADJUSTMENT INSTRUCTION ................................................................ 7

BLOCK DIAGRAM...................................................................................14

EXPLODED VIEW .................................................................................. 15

SVC. SHEET ...............................................................................................

- 3 -

Only for training and service purposes

SAFETY PRECAUTIONS

Many electrical and mechanical parts in this chassis have special safety-related characteristics. These parts are identified by in the

Schematic Diagram and Exploded View.

It is essential that these special safety parts should be replaced with the same components as recommended in this manual to prevent

Shock, Fire, or other Hazards.

Do not modify the original design without permission of manufacturer.

General Guidance

An isolation Transformer should always be used during the

servicing of a receiver whose chassis is not isolated from the AC

power line. Use a transformer of adequate power rating as this

protects the technician from accidents resulting in personal injury

from electrical shocks.

It will also protect the receiver and it's components from being

damaged by accidental shorts of the circuitry that may be

inadvertently introduced during the service operation.

If any fuse (or Fusible Resistor) in this TV receiver is blown,

replace it with the specified.

When replacing a high wattage resistor (Oxide Metal Film Resistor,

over 1 W), keep the resistor 10 mm away from PCB.

Keep wires away from high voltage or high temperature parts.

Before returning the receiver to the customer,

always perform an AC leakage current check on the exposed

metallic parts of the cabinet, such as antennas, terminals, etc., to

be sure the set is safe to operate without damage of electrical

shock.

Leakage Current Cold Check(Antenna Cold Check)

With the instrument AC plug removed from AC source, connect an

electrical jumper across the two AC plug prongs. Place the AC

switch in the on position, connect one lead of ohm-meter to the AC

plug prongs tied together and touch other ohm-meter lead in turn to

each exposed metallic parts such as antenna terminals, phone

jacks, etc.

If the exposed metallic part has a return path to the chassis, the

measured resistance should be between 1 MΩ and 5.2 MΩ.

When the exposed metal has no return path to the chassis the

reading must be infinite.

An other abnormality exists that must be corrected before the

receiver is returned to the customer.

Leakage Current Hot Check (See below Figure)

Plug the AC cord directly into the AC outlet.

Do not use a line Isolation Transformer during this check.

Connect 1.5 K / 10 watt resistor in parallel with a 0.15 uF capacitor

between a known good earth ground (Water Pipe, Conduit, etc.)

and the exposed metallic parts.

Measure the AC voltage across the resistor using AC voltmeter

with 1000 ohms/volt or more sensitivity.

Reverse plug the AC cord into the AC outlet and repeat AC voltage

measurements for each exposed metallic part. Any voltage

measured must not exceed 0.75 volt RMS which is corresponds to

0.5 mA.

In case any measurement is out of the limits specified, there is

possibility of shock hazard and the set must be checked and

repaired before it is returned to the customer.

Leakage Current Hot Check circuit

1.5 Kohm/10W

To Instrument's

exposed

METALLIC PARTS

Good Earth Ground

such as WATER PIPE,

CONDUIT etc.

AC Volt-meter

When 25A is impressed between Earth and 2nd Ground

for 1 second, Resistance must be less than 0.1

*Base on Adjustment standard

IMPORTANT SAFETY NOTICE

0.15 uF

Ω

- 4 -

Only for training and service purposes

SPECIFICATION

NOTE : Specifications and others are subject to change without notice for improvement

1. Application range

This specification is applied to the LCD TV used LD03B

chassis.

2. Requirement for Test

Each part is tested as below without special appointment.

1) Temperature: 25 ºC ± 5 ºC(77 ºF ± 9 ºF), CST: 40 ºC ± 5 ºC

2) Relative Humidity : 65 % ± 10 %

3) Power Voltage

: Standard input voltage (AC 100-240 V~ 50 / 60 Hz)

* Standard Voltage of each products is marked by models.

4) Specification and performance of each parts are followed

each drawing and specification by part number in

accordance with BOM.

5) The receiver must be operated for about 5 minutes prior to

the adjustment.

3. Test method

1) Performance: LGE TV test method followed

2) Demanded other specification

- Safety : CE, IEC specification

- EMC :CE, IEC

4. Module optical specification

1) Stable for approximately 60 minutes in a dark environment at 25 ºC ± 2 ºC and windless room.

2) Operating Ambient Humidity : Min 10, Max 90 %RH

3) Supply Votage : 24 V

4) Frame Frequency : 120 Hz

No. Item Specification Min. Typ. Max. Remark

1. Viewing Angle<CR>10> Right/Left/Up/Down 89/89/89/89 CR > 10

2. Luminance Luminance (cd/m

) 400 500

Variation 1.3 MAX /MIN

3. Contrast Ratio CR 1100 1500

4. CIE Color Coordinates White Wx 0.279 All white / All black

Wy 0.292

RED Xr 0.636

Yr Typ. 0.335 Typ.

Green Xg -0.03 0.291 +0.03

Yg 0.603

Blue Xb 0.146

Yb 0.061

- 5 -

Only for training and service purposes

5. Component Video Input (Y, CB/PB, CR/PR)

No.

Specification

Remark

Resolution H-freq(kHz) V-freq(Hz)

1. 720x480 15.73 60.00 SDTV,DVD 480i

2. 720x480 15.63 59.94 SDTV,DVD 480i

3. 720x480 31.47 59.94 480p

4. 720x480 31.50 60.00 480p

5. 720x576 15.625 50.00 SDTV,DVD 625 Line

6. 720x576 31.25 50.00 HDTV 576p

7. 1280x720 45.00 50.00 HDTV 720p

8. 1280x720 44.96 59.94 HDTV 720p

9. 1280x720 45.00 60.00 HDTV 720p

10. 1920x1080 31.25 50.00 HDTV 1080i

11. 1920x1080 33.75 60.00 HDTV 1080i

12. 1920x1080 33.72 59.94 HDTV 1080i

13. 1920x1080 56.250 50 HDTV 1080p

14. 1920x1080 67.5 60 HDTV 1080p

No.

Specification

Proposed Remarks

Resolution H-freq(kHz) V-freq(Hz) Pixel Clock(MHz)

1. 720*400 31.468 70.08 28.321 For only DOS mode

2. 640*480 31.469 59.94 25.17 VESA Input 848*480 60Hz, 852*480 60 Hz

-> 640*480 60 Hz Display

3. 800*600 37.879 60.31 40.00 VESA

4. 1024*768 48.363 60.00 65.00 VESA(XGA)

5. 1280*768 47.78 59.87 79.5 WXGA

6. 1360*768 47.72 59.8 84.75 WXGA

7. 1280*1024 63.595 60.0 108.875 SXGA FHD model

8. 1920*1080 66.587 59.93 138.625 WUXGA FHD model

6. RGB (PC)

- 6 -

Only for training and service purposes

7. HDMI Input

(1) DTV Mode

No. Resolution H-freq(kHz) V-freq.(Hz) Pixel clock(MHz) Proposed Remark

1. 720*400 31.468 70.08 28.321 HDCP

2. 640*480 31.469 59.94 25.17 VESA HDCP

3. 800*600 37.879 60.31 40.00 VESA HDCP

4. 1024*768 48.363 60.00 65.00 VESA(XGA) HDCP

5. 1280*768 47.78 59.87 79.5 WXGA HDCP

6. 1360*768 47.72 59.8 84.75 WXGA HDCP

7. 1280*1024 63.595 60.0 108.875 SXGA HDCP/FHD model

8. 1920*1080 67.5 60.00 138.625 WUXGA HDCP/FHD model

(2) PC Mode

No. Resolution H-freq(kHz) V-freq.(Hz) Pixel clock(MHz) Proposed Remark

1. 720*480 31.469 /31.5 59.94 /60 27.00/27.03 SDTV 480P

2. 720*576 31.25 50 54 SDTV 576P

3. 1280*720 37.500 50 74.25 HDTV 720P

4. 1280*720 44.96 /45 59.94 /60 74.17/74.25 HDTV 720P

5. 1920*1080 33.72 /33.75 59.94 /60 74.17/74.25 HDTV 1080I

6. 1920*1080 28.125 50.00 74.25 HDTV 1080I

7. 1920*1080 26.97 /27 23.97 /24 74.17/74.25 HDTV 1080P

8. 1920*1080 33.716 /33.75 29.976 /30.00 74.25 HDTV 1080P

9. 1920*1080 56.250 50 148.5 HDTV 1080P

10. 1920*1080 67.43 /67.5 59.94 /60 148.35/148.50 HDTV 1080P

- 7 -

Only for training and service purposes

ADJUSTMENT INSTRUCTION

1. Application Range

This specification sheet is applied to all of the LCD TV with

LD03B chassis.

2. Designation

(1) Because this is not a hot chassis, it is not necessary to use

an isolation transformer. However, the use of isolation

transformer will help protect test instrument.

(2) Adjustment must be done in the correct order.

(3) The adjustment must be performed in the circumstance of

25 ºC ± 5 ºC of temperature and 65 % ± 10 % of relative

humidity if there is no specific designation.

(4) The input voltage of the receiver must keep AC 100-240

V~ 50 / 60Hz.

(5) The receiver must be operated for about 5 minutes prior to

the adjustment when module is in the circumstance of over

15.

In case of keeping module is in the circumstance of 0 °C, it

should be placed in the circumstance of above 15 °C for 2

hours

In case of keeping module is in the circumstance of below -

20 °C, it should be placed in the circumstance of above 15

°C for 3 hours.

[Caution]

When still image is displayed for a period of 20 minutes or

longer (especially where W/B scale is strong. Digital pattern

13ch and/or Cross hatch pattern 09ch), there can some

afterimage in the black level area.

3. Automatic Adjustment

3.1. ADC Adjustment

(1) Overview

ADC adjustment is needed to find the optimum black level

and gain in Analog-to-Digital device and to compensate

RGB deviation.

(2) Equipment & Condition

1) Jig (RS-232C protocol)

2) MSPG-925 Series Pattern Generator(MSPG-925FA,

pattern - 65)

- Resolution : 480i Comp1

1080P Comp1

1920*1080 RGB

- Pattern : Horizontal 100% Color Bar Pattern

- Pattern level : 0.7±0.1 Vp-p

- Image

(3) Adjustment

1) Adjustment method

- Using RS-232, adjust items listed in 3.1 in the other

shown in “3.1.(3).3)”

2) Adj. protocol

Ref.) ADC Adj. RS232C Protocol_Ver1.0

3) Adj. order

- aa 00 00 [Enter ADC adj. mode]

- xb 00 40 [Change input source to Component1(No action)]

- ad 00 10 [Adjust 480i Comp1]

- ad 00 10 [Adjust 1080p Comp1]

- xb 00 60 [Change input source to RGB(No action)]

- ad 00 10 [Adjust 1080p RGB]

- ad 00 90 End adj.

3.2. MAC Address Write

(1) Equipment & Condition

- Play file: Serial.exe

- MAC Address edit

- Input Start / End MAC address

(2) Download method

1) Communication Prot connection

Connect: PCBA Jig-> RS-232C Port== PC-> RS-232C Port

Protocol Command Set ACK

Enter adj. mode aa 00 00 a 00 OK00x

Source change xb 00 40 b 00 OK40x (Adjust 480i Comp1 )

(Adjust 1080p Comp1)

xb 00 60 b 00 OK60x (Adjust 1080p RGB)

Begin adj. ad 00 10

Return adj. result OKx (Case of Success)

NGx (Case of Fail)

Read adj. data (main) (main: component1 480i, RGB 1080p)

ad 00 20 000000000000000000000000007c007b006dx

(main) (main: component1 108p)

ad 00 30 000000070000000000000000007c00830077x

Confirm adj. ad 00 99 NG 03 00x (Fail)

NG 03 01x (Fail)

NG 03 02x (Fail)

OK 03 03x (Success)

End adj. aa 00 90 a 00 OK90x

PCBA

PC(RS-232C)

RS-232C Por t

- 8 -

Only for training and service purposes

2) MAC Address Download

- Com 1,2,3,4 and 115200(Baud rate)

- Port connection button click(1)

- Load button click(2) for MAC Address write.

- Start MAC Address write button(3)

- Check the OK or NG

3.3. LAN

(1) Equipment & Condition

A Each other connection to LAN Port of IP Hub and Jig

(2) LAN inspection solution

A LAN Port connection with PCB

A Network setting at MENU Mode of TV

A setting automatic IP

A Setting state confirmation

-> If automatic setting is finished, you confirm IP and

MAC Address.

3.4. LAN PORT INSPECTION(PING TEST)

Connect SET -> LAN port == PC -> LAN Port

(1) Equipment setting

1) Play the LAN Port Test PROGRAM.

2) Input IP set up for an inspection to Test

Program.

*IP Number : 12.12.2.2

(2) LAN PORT inspection (PING TEST)

1) Play the LAN Port Test Program.

2) Connect each other LAN Port Jack.

3) Play Test (F9) button and confirm OK Message.

4) Remove LAN CABLE

3.5. V-COM Adjust(Only LGD(M+S) Module)

- Why need Vcom adjustment?

A The Vcom (Common Voltage) is a Reference Voltage of

Liquid Crystal Driving.

-> Liquid Crystal need for Polarity Change with every frame.

Row Li ne

Column Li ne

CLC

CST

Pane l

Gat e Driv e IC

So urce D r iv e I C

Circuit Block

Tim i ng

Cont r o ll er

Po w er

Blo ck

COM

Gamma

Ref er ence V o ltage

Gamm a Reference

Volta ge

Data (R,G ,B) & C on tro l signal

Cont rol si gnal

Data (R,G,B ) &

Cont rol si gnal

In t er fa ce

TFT

Po w er I np ut

Power Input

Da ta I n pu t

COM

Liquid

Crys tal

COM

SET PC

- 9 -

Only for training and service purposes

- Adjust sequence

A Press the PIP key of the ADJ remote control.(This PIP key

is hot key to enter the VCOM adjusting mode)

(Or After enter Service Mode by pushing “ADJ” key, then

Enter V-Com Adjust mode by pushing “G” key at “10. V-

Com”)

A As pushing the right or the left button on the remote

control, and find the V-COM value Which is no or

minimized the Flicker.

(If there is no flicker at default value, Press the exit key

and finish the VCOM adjustment.)

A Push the OK key to store value. Then the message

“Saving OK” is pop.

A Press the exit key to finish VCOM adjustment.

3.6. Model name & serial number download

(1) Model name & Serial number D/L

A Press “Power on” key of service remote control.(Baud

rate : 115200 bps)

A Connect RS232 Signal Cable to RS-232 Jack.

A Write Serial number by use RS-232.

A Must check the serial number at Instart menu.

(2) Method & notice

A. Serial number D/L is using of scan equipment.

B. Setting of scan equipment operated by Manufacturing

Technology Group.

C.Serial number D/L must be conformed when it is

produced in production line, because serial number D/L

is mandatory by D-book 4.0

* Manual Download (Model Name and Serial Number)

If the TV set is downloaded by OTA or service man,

sometimes model name or serial number is initialized.(Not

always)

There is impossible to download by bar code scan, so It

need Manual download.

a. Press the ‘instart’ key of ADJ remote control.

b. Go to the menu ‘5.Model Number D/L’ like below photo.

c. Input the Factory model name(ex 42LD450-ZA) or Serial

number like photo.

d. Check the model name Instart menu -> Factory name

displayed (ex 42LE7500-ZA)

e. Check the Diagnostics (DTV country only) -> Buyer model

displayed (ex 42LE7500-ZA)

3.7. CI+ Key Download method

(1) Download Procedure

1) Press "Power on" button of a service R/C.(Baud rate :

115200 bps)

2) Connect RS232-C Signal Cable.

3) Write CI+ Key through RS-232-C.

4) Check whether the key was downloaded or not at ‘In

Start’ menu. (Refer to below).

=> Check the Download to CI+ Key value in LGset.

1. check the method of CI+ Key value

a. check the method on Instart menu

b. check the method of RS232C Command

1) into the main ass’y mode (RS232 : aa 00 00)

2) check the key download for transmitted command

(RS232 : ci 00 10)

3) result value

- normally status for download : OKx

- abnormally status for download : NGx

2. Check the method of CI+ Key value (RS232)

1) into the main ass’y mode (RS232 : aa 00 00)

2) Check the method of CI+ key by command (RS232 :

ci 00 20)

3) Result value

i 01 OK 1d1852d21c1ed5dcx

[Visual Adjust and control the Voltage level]

CMD 1 CMD 2 Data 0

AA00

CMD 1 CMD 2 Data 0

CI10

CMD 1 CMD 2 Data 0

AA00

CMD 1 CMD 2 Data 0

CI20

CI+ key Value

- 10 -

Only for training and service purposes

4. Manual Adjustment

4.1. ADC(Saturn5) Adjustment

4.1.1. Overview

ADC adjustment is needed to find the optimum black level and

gain in Analog-to-Digital device and to compensate RGB

deviation.

4.1.2. Equipment & Condition

(1) Adjust Remote control

(2) 801GF(802B, 802F, 802R) or MSPG925FA Pattern

Generator

- Resolution :

480i Comp1(MSPG-925FA : Model-209, Pattern-65)

1080p Comp1(MSPG-925FA : Model-225, Pattern-65)

1080p RGB (MSPG-925FA : Model-225, Pattern-65)

- Pattern : Horizontal 100% Color Bar Pattern

- Pattern level: 0.7 ± 0.1 Vp-p

- Image

(3) Must use standard cable

4.1.3. Adjust method

(1) ADC 480i/1080p Comp1, RGB

1) Check connected condition of Comp1 cable to the equipment.

2) Give a 480i, 1080p Mode, Horizontal 100% Color Bar

Pattern to Comp1.

(MSPG-925FA -> Model: 209, Pattern: 65)

3) Change input mode as Component1 and picture mode

as “Standard”

4) Press the In-start Key on the ADJ remote after at least 1

min of signal reception. Then, select 7. External ADC ->

1. COMP 1080p on the menu.

5) Press OK in Comp480i menu.

6) Give a 1080p Mode, Horizontal 100% Color Bar Pattern

to Comp1. (MSPG-925A -> Model: 225, Pattern: 65)

7) Press OK in Comp 1080p menu.

8) Press OK in RGB menu.

9) If ADC Comp is successful, “ADC Component Success”

is displayed. If ADC calibration is failure, “ADC

Component Fail” is displayed.

10) If ADC calibration is failure, after recheck ADC pattern

or condition, retry calibration

11) If ADC RGB is successful, “ADC RGB Success” is

displayed. If ADC calibration is failure, “ADC RGB Fail”

is displayed.

12) If ADC calibration is failure, after recheck ADC pattern

or condition, retry calibration

4.2. EDID(The Extended Display Identification

Data)/DDC(Display Data Channel) download

(1) Overview

It is a VESA regulation. A PC or a MNT will display an

optimal resolution through information sharing without any

necessity of user input. It is a realization of “Plug and Play”.

(2) Equipment

- Adjust remote control

- Since embedded EDID data is used, EDID download JIG,

HDMI cable and D-sub cable are not need.

(3) Download method

1) Press Adj. key on the Adj. R/C,

2) Select EDID D/L menu.

3) By pressing Enter key, enter EDID D/L menu.

4) If Download is successful, OK is displayed, but If

Download is failure, NG is displayed.

5) If Download is failure, Re-try download.

(4) EDID DATA

A HDMI

A RGB

* Address 10/11 and 7F means Manufacture Week and

Checksum. So this data will be change.

D-sub to D-sub DVI-D to HDMI or HDMI to HDMI

For HDMI EDIDFor Analog EDID

0x00 0x01 0x02 0x03 0x04 0x05 0x06 0x07 0x08 0x09 0x0A 0x0B 0x0C0x0D 0x0E 0x0F

0x00 00 FF FF FF FF FF FF 00 1E 6D

ⓐⓑ

0x02 0F 50 54 A1 08 00 71 4F 81 80 01 01 01 01 01 01

0x03 01 01 01 01 01 01 02 3A 80 18 71 38 2D 40 58 2C

0x04 45 00 A0 5A 00 00 00 1E 01 1D 00 72 51 D0 1E 20

0x05 6E 28 55 00 A0 5A 00 00 00 1E 00 00 00 FD 00 3A

0x06 3E 1E 53 10 00 0A 20 20 20 20 20 20 ⓓ

0x07 ⓓ 01 ⓔ

0x00 02 03 26 F1 4E 10 1F 84 13 05 14 03 02 12 20 21

0x01 22 15 01 26 15 07 50 09 57 07 67 ⓕ

0x02 ⓕ E3 05 03 01 01 1D 80 18 71 1C 16 20 58 2C

0x03 25 00 A0 5A 00 00 00 9E 01 1D 00 80 51 D0 0C 20

0x04 40 80 35 00 A0 5A 00 00 00 1E 02 3A 80 18 71 38

0x05 2D 40 58 2C 45 00 A0 5A 00 00 00 1E 66 21 50 B0

0x06 51 00 1B 30 40 70 36 00 A0 5A 00 00 00 1E 00 00

0x07 00 00 00 00 00 00 00 00 00 00 00 00 00 00 01 ⓔ

0x00 0x01 0x02 0x03 0x04 0x05 0x06 0x07 0x08 0x09 0x0A 0x0B 0x0C0x0D 0x0E 0x0F

0x00 00 FF FF FF FF FF FF 00 1E 6D ⓐⓑ

0x02 0F 50 54 A1 08 00 81 80 61 40 45 40 31 40 01 01

0x03 01 01 01 01 01 01 02 3A 80 18 71 38 2D 40 58 2C

0x04 45 00 A0 5A 00 00 00 1E 01 1D 00 72 51 D0 1E 20

0x05 6E 28 55 00 A0 5A 00 00 00 1E 00 00 00 FD 00 3A

0x06 3E 1E 53 10 00 0A 20 20 20 20 20 20 ⓓ

0x07 ⓓ 00 ⓔ

- 11 -

Only for training and service purposes

- Detail EDID Options are below

ⓐ Product ID

ⓑ Serial No. : Controlled on product line

ex) Monthly : ‘02’ -> ‘02’

Year : ‘2009’ -> ‘13’

ⓓ Model Name(Hex):

ⓔ Checksum(Model: LG TV)

ⓕ Vendor Specific(HDMI)

4.3. White Balance Adjustment

4.3.1 Overview

- W/B adj. Objective & How-it-works

(1) Objective: To reduce each Panel’s W/B deviation

(2) How-it-works : When R/G/B gain in the OSD is at 192, it

means the panel is at its Full Dynamic Range. In order to

prevent saturation of Full Dynamic range and data, one

of R/G/B is fixed at 192, and the other two is lowered to

find the desired value.

(3) Adj. condition : normal temperature

1) Surrounding Temperature : 25 ºC ± 5 ºC

2) Warm-up time: About 5 Min

3) Surrounding Humidity : 20 % ~ 80 %

4.3.2 Equipment

1) Color Analyzer: CA-210 (NCG: CH9 / WCG: CH 12)

2) Adj. Computer(During auto adj., RS-232C protocol is needed)

3) Adjust Remote control

4) Video Signal Generator MSPG-925F 720p/216-Gray

(Model:217, Pattern:78)

-> Only when internal pattern is not available

A Color Analyzer Matrix should be calibrated using CS-1000

4.3.3. Equipment connection MAP

4.3.4. Adj. Command (Protocol)

A RS-232C Command used during auto-adj.

Ex) wb 00 00 -> Begin white balance auto-adj.

wb 00 10 -> Gain adj.

ja 00 ff -> Adj. data

jb 00 c0

...

wb 00 1f -> Gain adj. completed

*(wb 00 20(Start), wb 00 2f(completed)) -> Off-set adj.

wb 00 ff -> End white balance auto-adj.

A Adj. Map

Model Name HEX EDID Table DDC Function

FHD Model 0001 01 00 Analog/Digital

MODEL MODEL NAME(HEX)

all 00 00 00 FC 00 4C 47 20 54 56 0A 20 20 20 20 20 20 20

INPUT MODEL NAME(HEX)

HDMI1 67 03 0C 00 10 00 B8 2D

HDMI2 67 03 0C 00 20 00 B8 2D

HDMI3 67 03 0C 00 30 00 B8 2D

HDMI4 67 03 0C 00 40 00 B8 2D

Color Analyzer

Comp uter

Pattern Generator

RS- 232C

RS-232C

Probe

Signal Source

* If TV internal pattern is used, not needed

RS-232C COMMAND Explanation

[CMD ID DATA]

wb 00 00 Begin White Balance adj.

wb 00 10 Gain adj.(internal white pattern)

wb 00 1f Gain adj. completed

wb 00 20 Offset adj.(internal white pattern)

wb 00 2f Offset adj. completed

wb 00 ff End White Balance adj.(Internal pattern disappears)

ITEM Command Data Range Default

(Hex.) (Decimal)

Cmd 1 Cmd 2 Min Max

Cool R-Gain j g 00 C0

G-Gain j h 00 C0

B-Gain j i 00 C0

R-Cut

G-Cut

B-Cut

Medium R-Gain j a 00 C0

G-Gain j b 00 C0

B-Gain j c 00 C0

R-Cut

G-Cut

B-Cut

Warm R-Gain j d 00 C0

G-Gain j e 00 C0

B-Gain j f 00 C0

R-Cut

G-Cut

ⓔ1 ⓔ2 ⓔ3

HDMI 1 D7 D9 X

HDMI 2 D7 C9 X

HDMI 3 D7 B9 X

HDMI 4 X X X

RGB X X 1D

- 12 -

Only for training and service purposes

4.3.5. Adj. method

(1) Auto adj. method

1) Set TV in adj. mode using POWER ON key.

2) Zero calibrate probe then place it on the center of the

Display.

3) Connect Cable (RS-232C)

4) Select mode in adj. Program and begin adjustment.

5) When adj. is complete (OK Sing), check adj. status pre

mode. (Warm, Medium, Cool)

6) Remove probe and RS-232C cable to complete adj.

A W/B Adj. must begin as start command “wb 00 00” , and

finish as end command “wb 00 ff”, and Adj. offset if need.

(2) Manual adj. method

1) Set TV in Adj. mode using POWER ON

2) Zero Calibrate the probe of Color Analyzer, then place it

on the center of LCD module within 10cm of the surface.

3) Press ADJ key -> EZ adjust using adj. R/C -> 7. White-

Balance then press the cursor to the right (KEY

G).

(When KEY(

G) is pressed 216 Gray internal pattern will

be displayed)

4) One of R Gain / G Gain / B Gain should be fixed at 192,

and the rest will be lowered to meet the desired value.

5) Adj. is performed in COOL, MEDIUM, WARM 3 modes

of color temperature.

A If internal pattern is not available, use RF input. In EZ

Adj. menu 7.White Balance, you can select one of 2

Test-pattern: ON, OFF. Default is inner(ON). By

selecting OFF, you can adjust using RF signal in 216

Gray pattern.

A Adj. condition and cautionary items

1) Lighting condition in surrounding area

Surrounding lighting should be lower 10 lux. Try to

isolate adj. area into dark surrounding.

2) Probe location

: Color Analyzer (CA-210) probe should be within 10

cm and perpendicular of the module surface (80° ~

100°)

3) Aging time

- After Aging Start, Keep the Power ON status during

5 Minutes.

- In case of LCD, Back-light on should be checked

using no signal or Full-white pattern.

4.3.6. Reference (White Balance Adj. coordinate

and temperature)

A Luminance : 216 Gray

A Standard color coordinate and temperature using CS-1000

(over 26 inch)

A Standard color coordinate and temperature using CA-

210(CH 9)

4.4. EYE-Q function check

Step 1) Turn on TV

Step 2) Press EYE key of Adj. R/C

Step 3) Cover the Eye Q II sensor on the front of the using

your hand and wait for 6 seconds

Step 4) Confirm that R/G/B value is lower than 10 of the “Raw

Data (Sensor data, Back light)”. If after 6 seconds,

R/G/B value is not lower than 10, replace Eye Q II

sensor.

Step 5) Remove your hand from the Eye Q II sensor and wait

for 6 seconds.

Step 6) Confirm that “ok” pop up. If change is not seen,

replace Eye Q II sensor.

4.7. Tool Option selection

- Method : Press Adj. key on the Adj. R/C, then select Tool

option.

4.8. Ship-out mode check(In-stop)

After final inspection, press IN-STOP key of the Adj. R/C and

check that the unit goes to Stand-by mode.

After final inspection, Always turn on the Mechanical S/W.

Mode Color Coordination Temp ∆uv

COOL 0.269 0.273 13000 K 0.0000

MEDIUM 0.285 0.293 9300 K 0.0000

WARM 0.313 0.329 6500 K 0.0000

Mode Color Coordination Temp ∆uv

COOL 0.269 ± 0.002 0.273 ± 0.002 13000 K 0.0000

MEDIUM 0.285 ± 0.002 0.293 ± 0.002 9300 K 0.0000

WARM 0.313 ± 0.002 0.329 ± 0.002 6500 K 0.0000

MODEL Tool 1 Tool 2 Tool 3 Tool 4 Tool 5

47LD750 32899 23087 56332 22828 2866

47LD790 32899 23087 56332 20780 2866

+ 28 hidden pages